hong kong, but is it really hong kong? >> clearly you can see i am in the city of detroit, but i'm going to show you how movie magic happens and look, we're in downtownransformers, age of extinction, out march 27th, rocsi got a few moments of michael bayh's time and he's one of the most hands-on directors we've seen. >> let's go. what are you doing? >> and michael is in charge of every single aspect on the set including the explosion. >> the motor city has never seen this much horsepower. >> in this movie, taxis get tossed around like toys and check out the movie cars. no one ever gets this close. >> so right now i'm sitting inside a finger which is actually a pagani. you want to check out the new bumble bee? rocsi invited some fans to get a close-up look at bumble bee and when cameras roll, head's up! >> we've got to be really careful and they're setting up right now to blow up these cars and on the ground are these small, little wires, producers have told us to be very, very caful or we can blow up. >> detroit to half way around the world to hong kong, we found mark in the exact same outfit when wet lefhim in the motor city. >> is that the same blo

hong kong, november 20th, 1996. the worst high-rise fire in the country's history breaks out in the 16-story office and apartment building in the downtown shopping district. thousands of people scramble over one another to flee that burning building. some are lucky enough to escape. others are not. lives dangle on the edge of death. rescue teams are pushed to the brink and beyond. >> you have to sum up the overall situation, the hazards and dangers, what is feasible, what is achievable, and what's obviously not. >> 4:49 p.m., fire is reported on the second floor. it spreads quickly. the elevator shaftway ventilated at the top acts as an enormous chimney. it draws the fire upwards, engulfing the bottom and top floors in flames. some run to the roof to avoid the fire. hundreds of others are trapped on lower floors. in only ten minutes, the fire is upgraded to three alarms. but some fire trucks can't even get to the scene. precious minutes wasted as desperate bystanders, police and firemen struggle to clear the narrow, congested streets. it's 5:18. the fire is upgraded again. it's now four alarms. >> my urgency was that people actually sta